/*
 * Copyright 2010 GP Software
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * FilterDataHandler.java | Created on April 24, 2010
 */
package org.gp.gpetl.handler;

import org.gp.gpetl.exception.DataHandlingException;
import org.gp.gpetl.filter.DataFilter;

/**
 * Data handler decorator that performs filtering operations
 *
 * @author Paul Augustine C. Mendoza
 * @since 1.0
 */
public class FilterDataHandler extends AbstractHandlerDecorator {

    private DataFilter dataFilter;

    public FilterDataHandler(DataHandler dataHandler) {
        super(dataHandler);
    }

    public void setDataFilter(DataFilter dataFilter) {
        this.dataFilter = dataFilter;
    }

    public void handle() throws DataHandlingException {
        // Invoke decorated object
        this.dataHandler.handle();
        System.out.println("Performing filter data handling...");
        this.dataFilter.doFilter();
    }

}
